Minimum speed for CD-R burning is 8x
But, i needed 4x.
Help me please.
I don't understand why you're asking us this.... you already have stated the minimum burning speed is 8x... I don't think there is anyone on this forum who can tell you how to remake the drive so that it has slower buring speeds available.
Punch Cards -> Paper Tape -> Tape Drive -> 8" Floppy Diskette -> 5 1/4" Floppy Diskette -> 3 1/2" "Flippy" Diskette -> CD-R -> DVD±R -> BD-R
The Progression of Computer Media